Talvez deva tentar algumas variações de ortografia:
comparing estimated » comparing estimates (Expandir a Pesquisa), comparing automated (Expandir a Pesquisa), combining estimates (Expandir a Pesquisa)
rat comparing » rate comparing (Expandir a Pesquisa), rct comparing (Expandir a Pesquisa), fat comparing (Expandir a Pesquisa)
estimated net » estimated need (Expandir a Pesquisa), estimated cost (Expandir a Pesquisa), estimated rate (Expandir a Pesquisa)
natl camp » al camp (Expandir a Pesquisa), fat camp (Expandir a Pesquisa)
nao comer » nao comecar (Expandir a Pesquisa), nao com (Expandir a Pesquisa), nao como (Expandir a Pesquisa)
comer dan » romer dan (Expandir a Pesquisa), comer diane (Expandir a Pesquisa), comer vann (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
dan non » than non (Expandir a Pesquisa), dan ning (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
j rat » j rath (Expandir a Pesquisa), _ rat (Expandir a Pesquisa), a rat (Expandir a Pesquisa)
a nao » e nao (Expandir a Pesquisa), o nao (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j rat comparing estimated net ) or ( j natl camp can netw ))) or ( a nao comer dan non ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j rat comparing estimated net ) OR ( j natl camp can netw ))) OR ( a nao comer dan non ))*.